Automatically close app after some time

[Semmu]

Hi there,

It would be nice if this app could exit after some time of being idle, e.g. 5 minutes, because I almost always forget to close it after using it for some authentication, and keeping the app running noticeably drains the battery of my poor Pebble because of the constant screen update - compared to my watchface, which only refreshes the screen once in a minute.

Btw. is this project dead? Seems so based on the activity 😞 A public call for maintainers could help, worth a try!

Thanks for this app though!